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Exception handling for wrong device

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This commit is contained in:
Dirk Alders 2024-03-23 14:13:53 +01:00
parent 4a5ea44daa
commit b44cfef41d
1 changed files with 12 additions and 5 deletions
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17
netst.src/netst.py
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@ -6,6 +6,13 @@ import struct
import sys import sys
import time import time
interfaces = ifcfg.interfaces()
def exit_device():
print("Possible devices:", ", ".join(interfaces.keys()))
sys.exit(1)
def gateway(device): def gateway(device):
with open("/proc/net/route") as fh: with open("/proc/net/route") as fh:
# skip header # skip header
@ -22,8 +29,8 @@ def gateway(device):
try: try:
DEVICE = sys.argv[1] DEVICE = sys.argv[1]
except IndexError: except IndexError:
print("You need to give the device name as first argument") print("You need to give the device name as first argument!\n")
sys.exit() exit_device()
HRN = { # Human Readable Name HRN = { # Human Readable Name
'MAC': 'ether', 'MAC': 'ether',
@ -33,10 +40,10 @@ HRN = { # Human Readable Name
} }
try: try:
info = ifcfg.interfaces()[DEVICE] info = interfaces[DEVICE]
except KeyError: except KeyError:
print("Unknown device:", DEVICE) print("Unknown device:", DEVICE, "\n")
sys.exit(1) exit_device()
try: try:
dns_resolver = dns.resolver.Resolver() dns_resolver = dns.resolver.Resolver()
except dns.resolver.NoResolverConfiguration: except dns.resolver.NoResolverConfiguration: